Improvement in oilers toe machinery



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Letters Patent No. 81,705, dated September 1, 1868.

IMPRDVEMLNT 1N OILERS 4ron MACHINERY.'

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TO ALL WHOM I'l MAY OONCERN:

Be it known that I', NEWTON TALLMAN, of West NewBrighton, in the countyof Richmond, and State .of New York, have invented a new` and improved Oil-Can; and I hereby declare thatthe following'is a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, forming Apart of this specification, in which i Figure 1 represents a view of en oil-can with my improvement.

Figure 2, a sectional elevationl of the same. y

Figure 3 is a view of the improvement removed from the can.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in a perforated inner cylinder orchamber, provided with an outlet through the nozzle, and communicating through the reservoir or bodyV of the 'can by means of its perforations, whereby the oil is strained in tspaesage therethrough, and solid substances are prevented from entering the nozzle and obstructing the lo\vsuch cylinder or chamber being held in place by a sprin'g'connected thereto, and bearing against the bottom of the can, and the said spring serving also to press outward the bottom.

In order that others may be better enabled to understand the construction and operation of ymy invention, I will proceed to describe it with reference to thedrawings. i l

A is. the vreservoir ofthe can, which is of the ordinary form and construction, having secured to its upper extremity a nozzle, B, after thc usualimanner, by a screw-thread or other suitable connection. Within the upper portion of the reservoir A, is vertically arranged an inner chamber, a,of cylindrical 'or other suitable form, having a reduced portion or neck,f, upon itsupper extremity, which enters and fits the cavity of the base ofthe nozzle B. rlhis chamber is constructed of perforatedplate metal or wire gauze, so that the perforations of the one or interstices of the other may provide' for the free passage of the oil from the said reservoir into the chamber'ct,` but prevent the passage of solid or other foneign matter, or it may he constructed of plate metal, which has its `perforations driven through, leaving projecting burrs on the outer surface, so that the'said perfor-ations will be, to Some extent, protected vby the said projecting burrs, and consequently less liable to become choked or clogged by the attempted passage of foreign matter, which is sometimes contained in the oil or at the bottom 4of th'e can.

' Connected to the lower extremity of the chamber a, by means of an adjusting'screw, b, is a spiral spring, E, which, acting against the bottom of the can, serves the double purpose of holding thechamber a to its place, and forcing out the bottom of the can after it has been inwardly pressed. i I This spiral spring E is provided with amean's of adjustment, when growing weak from the collapsing of its coils, by 'means of the outward or downward set of the-adjusting-screw b, which fits and works vertically through a threaded orifice in the lowcrfenfl of the chamber a, and tothe head d of which isl secured the upper extremity of the spiral spring E, so that vthe turning of the Asaid screw in or out of the aforesaid threaded 1' oriiice in the end of the chamber t will weaken or strengthen the spring E. g

The adjusting-screw b is provided with a` locking-unan, for the purpose of locking or securing the said screw 6 to any depth in the threaded orifice to whielrit may be set:

f The spiral spring may be secured directly to the bottom of the chamber a, thereby dispensing with the screw b and locking-nut c, but their employment is preferred on account of the adjustingcdvantages derived therefrom. I

This invention is operated in the usual manner, `by pressing the thumb against the bottom of the can, which compresses the air confined within the reservoir, and forces the oil out of the nozzle;- but before passing out thereat, it is made to pass through the perforated or straining-chamber tt, thereby stripping it of all matter or substances which would have a tendency to cholie the nozzle and prevent the flow.

When the pressure at the bottom of the can is removed, the'said bottom' is Caused to assume its original outward distension, by the action ot' the 'spiralspring E against `the inner surface thereof. When, from con` tinued usage, the spring becomes weakened by the collapsing of its coils, the chamber may be removed by unscrewing the nozzle, and the adjusting-screw b turned back a number of turns, so as, by drawing the said screw out of the threaded orifice, to 1engthen-the structure suciently to cause the lower extremity of the spring E again to press against the bottom of thecan with the same force as before, whereupon it may be reinserted within the can, and the nozzle screwed down to its place, when it will operate as well as ever.

What I claim as my invention', and desire to have secured by Letters Patent, is

1. The perforated inner chamber a and spring F, in combination with each other, and with the nozzle and bottom of an oil-can, substantially as and for the purposes herein set forth. y

2. 'lhe adjustingscrew I1 and nut c, in combination with the spring E and the cylinder or chamber a, substantialiy as and for the purpose herein specified.

NEWTON TALLMAN.

Witnesses A. J. WHITE, O. B. WHITE. 

